Microblaze patches for 5.13-rc1

- Switch to generic syscall scripts
 - Some small fixes
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Merge tag 'microblaze-v5.13' of git://git.monstr.eu/linux-2.6-microblaze

Pull Microblaze updates from Michal Simek:
 "No new features, just about cleaning up some code and moving to
  generic syscall solution used by other architectures:

   - Switch to generic syscall scripts

   - Some small fixes"

* tag 'microblaze-v5.13' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: add 'fallthrough' to memcpy/memset/memmove
  microblaze: Fix a typo
  microblaze: tag highmem_setup() with __meminit
  microblaze: syscalls: switch to generic syscallhdr.sh
  microblaze: syscalls: switch to generic syscalltbl.sh

arch/microblaze/kernel/syscall_table.S

@@ -1,6 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 
-#define __SYSCALL(nr, entry, nargs) .long entry
+#define __SYSCALL(nr, entry) .long entry
 ENTRY(sys_call_table)
 #include <asm/syscall_table.h>
-#undef __SYSCALL

arch/microblaze/kernel/syscalls/Makefile

@@ -6,20 +6,14 @@ _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')	\
 	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
 
 syscall := $(src)/syscall.tbl
-syshdr := $(srctree)/$(src)/syscallhdr.sh
-systbl := $(srctree)/$(src)/syscalltbl.sh
+syshdr := $(srctree)/scripts/syscallhdr.sh
+systbl := $(srctree)/scripts/syscalltbl.sh
 
 quiet_cmd_syshdr = SYSHDR  $@
-      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'	\
-		   '$(syshdr_abis_$(basetarget))'		\
-		   '$(syshdr_pfx_$(basetarget))'		\
-		   '$(syshdr_offset_$(basetarget))'
+      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr $< $@
 
 quiet_cmd_systbl = SYSTBL  $@
-      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'	\
-		   '$(systbl_abis_$(basetarget))'		\
-		   '$(systbl_abi_$(basetarget))'		\
-		   '$(systbl_offset_$(basetarget))'
+      cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
 
 $(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
 	$(call if_changed,syshdr)

arch/microblaze/kernel/syscalls/syscallhdr.sh

@@ -1,36 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-in="$1"
-out="$2"
-my_abis=`echo "($3)" | tr ',' '|'`
-prefix="$4"
-offset="$5"
-
-fileguard=_UAPI_ASM_MICROBLAZE_`basename "$out" | sed \
-	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
-	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
-grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
-	printf "#ifndef %s\n" "${fileguard}"
-	printf "#define %s\n" "${fileguard}"
-	printf "\n"
-
-	nxt=0
-	while read nr abi name entry ; do
-		if [ -z "$offset" ]; then
-			printf "#define __NR_%s%s\t%s\n" \
-				"${prefix}" "${name}" "${nr}"
-		else
-			printf "#define __NR_%s%s\t(%s + %s)\n" \
-				"${prefix}" "${name}" "${offset}" "${nr}"
-		fi
-		nxt=$((nr+1))
-	done
-
-	printf "\n"
-	printf "#ifdef __KERNEL__\n"
-	printf "#define __NR_syscalls\t%s\n" "${nxt}"
-	printf "#endif\n"
-	printf "\n"
-	printf "#endif /* %s */\n" "${fileguard}"
-) > "$out"

arch/microblaze/kernel/syscalls/syscalltbl.sh

@@ -1,32 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-in="$1"
-out="$2"
-my_abis=`echo "($3)" | tr ',' '|'`
-my_abi="$4"
-offset="$5"
-
-emit() {
-	t_nxt="$1"
-	t_nr="$2"
-	t_entry="$3"
-
-	while [ $t_nxt -lt $t_nr ]; do
-		printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
-		t_nxt=$((t_nxt+1))
-	done
-	printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
-}
-
-grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
-	nxt=0
-	if [ -z "$offset" ]; then
-		offset=0
-	fi
-
-	while read nr abi name entry ; do
-		emit $((nxt+offset)) $((nr+offset)) $entry
-		nxt=$((nr+1))
-	done
-) > "$out"

arch/microblaze/lib/memcpy.c

@@ -68,9 +68,11 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
 		case 1:
 			*dst++ = *src++;
 			--c;
+			fallthrough;
 		case 2:
 			*dst++ = *src++;
 			--c;
+			fallthrough;
 		case 3:
 			*dst++ = *src++;
 			--c;
@@ -176,8 +178,10 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
 	switch (c) {
 	case 3:
 		*dst++ = *src++;
+		fallthrough;
 	case 2:
 		*dst++ = *src++;
+		fallthrough;
 	case 1:
 		*dst++ = *src++;
 	}

arch/microblaze/lib/memmove.c

@@ -90,9 +90,11 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
 		case 3:
 			*--dst = *--src;
 			--c;
+			fallthrough;
 		case 2:
 			*--dst = *--src;
 			--c;
+			fallthrough;
 		case 1:
 			*--dst = *--src;
 			--c;
@@ -201,10 +203,13 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
 	switch (c) {
 	case 4:
 		*--dst = *--src;
+		fallthrough;
 	case 3:
 		*--dst = *--src;
+		fallthrough;
 	case 2:
 		*--dst = *--src;
+		fallthrough;
 	case 1:
 		*--dst = *--src;
 	}

arch/microblaze/lib/memset.c

@@ -69,9 +69,11 @@ void *memset(void *v_src, int c, __kernel_size_t n)
 		case 1:
 			*src++ = c;
 			--n;
+			fallthrough;
 		case 2:
 			*src++ = c;
 			--n;
+			fallthrough;
 		case 3:
 			*src++ = c;
 			--n;

arch/microblaze/lib/uaccess_old.S

@@ -188,7 +188,7 @@ w2:	sw	r4, r5, r3
 	.text
 
 .align 4 /* Alignment is important to keep icache happy */
-page:	/* Create room on stack and save registers for storign values */
+page:	/* Create room on stack and save registers for storing values */
 	addik   r1, r1, -40
 	swi	r5, r1, 0
 	swi	r6, r1, 4

arch/microblaze/mm/init.c

@@ -52,7 +52,7 @@ static void __init highmem_init(void)
 	pkmap_page_table = virt_to_kpte(PKMAP_BASE);
 }
 
-static void highmem_setup(void)
+static void __meminit highmem_setup(void)
 {
 	unsigned long pfn;